Answer Posted / pradeep

In India the EHV lines are up to 800kV but charged on 400
kV due to non availability of substation. Refer Anpara -
Unnao 800 kV line of UP completed in year 2000.

Why is negative feedback invariably preferred in closed loop system?

2330

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How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?

1674

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why the colour of insultor stack , petticoat is brown. Is it has some technical reason.

2035

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Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

2454

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Write down the brushes of a de machine.

1905

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What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?

1894

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I COMPLITED MY B.TECH AND 10TH CLASS WITH 70%MARKS BUT 12TH CLASS 55%MARKS..CAN I GET INDIAN RAILWAY RECUREMENT EXAMINATION?

2192

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Hi, This is Laila. I am selected for syndicate bank interview. Could you please share your views and the questions asked if you have faced the interview My email id is laila_honey09@yahoo.com Please send as fast as u can.Thank You Thanks... Laila.

2099

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what is high - pot test. what's its use?????

2193

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Why in ESP Positive earthed

3094

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What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

1979

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What is the automatic voltage regulator with servomotor?

2046

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Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry

1938

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1.what is the reason for transformer and lightning arrester blast in 33kv system

3103

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Define cut-off rate?

1093

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